Exact Planetary Aspects Calendar
Find when moving planets form exact conjunctions, sextiles, squares, trines, and oppositions. Choose a UTC date range and the bodies to compare.
Reading the aspect calendar
An aspect is the angle between two zodiac longitudes. This calendar lists only the instant that one of the five major angles is exact; it does not assign an orb or predict personal events.
The 6-hour search grid is split where a pair’s relative motion reverses, then each crossing is refined numerically. Extremely brief turns, exact tangencies, and events at the end boundary may fall outside the table. For historical research, compare times with a professional ephemeris.
The Moon’s last qualifying exact major aspect before a sign change begins an interval in the separate void-of-course Moon calendar.
Method and limits
What an exact aspect means
The tool checks conjunctions at 0°, sextiles at 60°, squares at 90°, trines at 120°, and oppositions at 180°. It uses apparent geocentric tropical longitudes, so the result describes the sky from Earth’s center rather than an individual birth chart or a specific local horizon.
Repeated contacts near a station
An apparently retrograde planet can meet another planet at the same aspect more than once. The search samples a six-hour grid, splits intervals around detected turns in relative motion, and refines crossings to the nearest minute. Each listed time is a calculated crossing, not a claim that the aspect has one fixed duration.
Filtering and exporting
Choose the bodies and a 7-, 30-, or 90-day UTC interval. Fast Moon aspects can create many rows; selecting fewer bodies helps focus the table. Download CSV for sorting or comparison with your own notes. These sky-to-sky events differ from the personal transit calendar, which compares moving planets with a recorded natal chart.
For dates beyond the displayed range, start a new search. The CSV file contains the same UTC events shown above.
For the interval between a sign’s final exact major lunar aspect and its next ingress, use the separate void-of-course Moon calculator or browse its monthly UTC tables. That tool states its body and aspect choices explicitly.